Influenza vaccine: a long way from Hong Kong.
D003140:Communicable Disease Control; D004196:Disease Outbreaks; D006723:Hong Kong; D006801:Humans; D007252:Influenza Vaccines / Q000592:standards*; D007251:Influenza, Human / Q000453:epidemiology / Q000517:prevention & control*; D014481:United States; D014492:United States Public Health Service; D014944:World Health Organization
D007252:Influenza Vaccines